Nanosensors based on responsive polymer brushes and gold nanoparticle enhanced transmission surface plasmon resonance spectroscopy

被引：320

作者：

Tokareva, I ^{[1
]}

Minko, S ^{[1
]}

Fendler, JH ^{[1
]}

Hutter, E ^{[1
]}

机构：

[1] Clarkson Univ, Dept Chem, Potsdam, NY 13699 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2004年 / 126卷 / 49期

关键词：

D O I：

10.1021/ja044575y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Swelling (and shrinking) of poly(2-vinylpyridine), P2VP, polymer brushes, caused by pH changes, could be readily monitored by transmission surface plasmon resonance, T-SPR, spectroscopy. Gold nanoparticles attached to the P2VP polymer brushes dramatically enhanced the pH-induced shift in the T-SPR absorption spectra. (A 50 nm shift of the absorption maximum of the T-SPR spectrum of the supporting gold nanoislands was observed upon changing the pH from 5.0 to 2.0, corresponding to a swelling of the polymer brushes from 8.1 ± 0.7 to 24.0 ± 2.0 nm. Same shift in the opposite direction was observed upon changing the pH from 2.0 to 5.0.). Copyright © 2004 American Chemical Society.

引用

收藏

页码：15950 / 15951

页数：2

相关论文

共 21 条

[1] Synthesis and swelling behavior of a weak polyacid brush [J].

Biesalski, M ;

Johannsmann, D ;

Rühe, J .

JOURNAL OF CHEMICAL PHYSICS, 2002, 117 (10) :4988-4994

[2] A nanoscale optical biosensor: The long range distance dependence of the localized surface plasmon resonance of noble metal nanoparticles [J].

Haes, AJ ;

Zou, SL ;

Schatz, GC ;

Van Duyne, RP .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (01) :109-116

[3] A nanoscale optical blosensor: Sensitivity and selectivity of an approach based on the localized surface plasmon resonance spectroscopy of triangular silver nanoparticles [J].

Haes, AJ ;

Van Duyne, RP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (35) :10596-10604

[4] Dichroic optical properties of extended nanostructures fabricated using angle-resolved nanosphere lithography [J].

Haynes, CL ;

Van Duyne, RP .

NANO LETTERS, 2003, 3 (07) :939-943

[5]

HOUBENOV N, 2001, PHYS REV E, V64

[6] Detection of DNA hybridization by gold nanoparticle enhanced transmission surface plasmon resonance spectroscopy [J].

Hutter, E ;

Pileni, MP .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (27) :6497-6499

[7] Surface plasmon resonance method for probing interactions in nanostructures: CdS nanoparticles linked to Au and Ag substrates by self-assembled hexanedithiol and aminoethanethiol monolayers [J].

Hutter, E ;

Fendler, JH ;

Roy, D .

JOURNAL OF APPLIED PHYSICS, 2001, 90 (04) :1977-1985

[8] Exploitation of localized surface plasmon resonance [J].

Hutter, E ;

Fendler, JH .

ADVANCED MATERIALS, 2004, 16 (19) :1685-1706

[9] Gradient polymer layers by "grafting to" approach [J].

Ionov, L ;

Zdyrko, B ;

Sidorenko, A ;

Minko, S ;

Klep, V ;

Luzinov, I ;

Stamm, M .

MACROMOLECULAR RAPID COMMUNICATIONS, 2004, 25 (01) :360-365

[10] Gradient mixed brushes: "Grafting to" approach [J].

Ionov, L ;

Sidorenko, A ;

Stamm, M ;

Minko, S ;

Zdyrko, B ;

Klep, V ;

Luzinov, I .

MACROMOLECULES, 2004, 37 (19) :7421-7423